Armthorpe lost their unbeaten record in the last match of the season as Eddie Curtis and Archie Faulkner won 21-2 for Askern to help the home side win 73-54.
Eddie Birdsey and Cec Fowler (21-1) and Des Crowcroft and Colin Morris (21-7) were the best pairs for Thorne in their 84-36 Division Three win over Harvester. Westield Park B lost 84-44 at home to Elmfield Park.
Woodlands Park suffered a narrow 77-76 defeat at home to Wickersley. Carcroft lost out 74-66 at Hexthorpe Flatts.
Danny Hallas and Jocky Sanderson won 21-8 as Woodlands Park clinched the league title with an 84-58 victory at Yorkshire Main B.
Westfield Park B posted an 83-68 win over Wickersley.
Armthorpe C had good wins from Charlie Cox and Bill McMahon (21-3) and Jean Winchcombe and Neil Garrett (21-4) as they beat Brodsworth B 73-49 in Division Four.
Adwick B beat Thorpe Marsh Bentley B 73-67 win.
Moira Robb and John Marshall (21-6) were the only winners for Tickhill B but they did enough to secure their side a 73-69 victory over Bentley.
Alan Wilby and Derek Erridge (21-7) were the only winners for Tickhill B as Denaby B won the Division Four title with wins by Alan Scott and Terry Goodwin (21-9) and Joe Walton and Adam Jones (21-5) earning them a 70-49 win.